Appareo Systems Stratus ESG User manual

This document and the information
contained herein are the property of
Appareo Systems, LLC and are
confidential. They may not be disseminated
or redistributed without the written
permission of Appareo Systems, LLC
APPAREO SYSTEMS, LLC
FARGO, NORTH DAKOTA 58102
Stratus ESG Installation Instructions
Document Number
600840-000032
Document Type
Certification
Last Revised
22 September 2016
Rev
1.5
Sheet
1 of 47
Installation Instructions
Revision 1.5

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 2 of 47
STRATUS ESG
©2015-2016 Appareo Systems, LLC. All Rights Reserved.
Stratus ESG Installation Instructions. All content within is copyrighted by Appareo
Systems, LLC, and may not be reprinted without permission.
Appareo assumes no responsibility or liability for any errors or inaccuracies that may appear in
the information content contained in this guide. Unauthorized replication of this guide is
prohibited.
Appareo, Appareo Systems, Stratus ESG, and the Appareo and Stratus ESG logos are either
registered trademarks or trademarks of Appareo Systems, LLC. All other trademarks and
registered trademarks are the sole property of their respective owners.
Appareo Systems, LLC, 1830 NDSU Research Circle North, Fargo, ND 58102 USA.
Visit us on the web at www.appareo.com.
Questions? E-mail us at [email protected].

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 3 of 47
Table of Contents
Stratus ESG Limited Warranty................................................................................................... 6
Warnings...................................................................................................................................10
Related Documentation.............................................................................................................12
Vendor Information ...................................................................................................................12
Abbreviations, Terms, and Definitions.......................................................................................13
1. About Stratus ESG..............................................................................................................15
1.1. Overview.................................................................................................................15
1.2. TSO/FCC compliance..............................................................................................15
1.3. TSO deviations........................................................................................................15
1.4. Non-TSO functions..................................................................................................15
1.5. Environmental qualifications....................................................................................16
1.6. Criticality level .........................................................................................................16
1.7. Embedded Hardware and Software.........................................................................16
1.8. Equipment specifications.........................................................................................17
1.9. Required tools.........................................................................................................18
1.10. Required hardware..................................................................................................18
1.11. Compatible equipment.............................................................................................19
2. Installing Stratus ESG.........................................................................................................21
2.1. Unpacking/inspection requirements.........................................................................21
2.2. Limitations for installation........................................................................................21
2.3. Backplate and rack installation................................................................................21
2.4. Unit installation........................................................................................................22
2.5. Cleaning..................................................................................................................22
2.6. Circuit protective device marking.............................................................................22
3. Cabling and wiring...............................................................................................................22
3.1. Cabling and wiring specifications.............................................................................22
3.2. Pins.........................................................................................................................23
3.3. Connecting antennas...............................................................................................26
4. Configuring Stratus ESG.....................................................................................................26
4.1. ICAO address..........................................................................................................27
4.2. VFR squawk............................................................................................................27
4.3. Aircraft registration..................................................................................................27
4.4. Aircraft airspeed category........................................................................................27
4.5. Aircraft category......................................................................................................28
4.6. Aircraft length..........................................................................................................28
4.7. Aircraft width ...........................................................................................................28
4.8. Altitude format.........................................................................................................28

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 4 of 47
4.9. Squat switch............................................................................................................28
4.10. Altitude source.........................................................................................................28
4.11. Backlight source......................................................................................................29
4.12. Backlight slope........................................................................................................29
4.13. Backlight offset........................................................................................................29
4.14. Backlight response time ..........................................................................................29
4.15. GPS antenna lateral offset ......................................................................................29
4.16. GPS antenna longitudinal offset..............................................................................29
4.17. ADS-B In capability .................................................................................................30
4.18. SBAS service provider.............................................................................................30
4.19. Diagnostic screens..................................................................................................30
5. Functional tests...................................................................................................................32
5.1. Power bus...............................................................................................................33
5.2. Discrete inputs.........................................................................................................33
5.3. Analog inputs ..........................................................................................................33
5.4. Altitude....................................................................................................................34
5.5. EMI check ...............................................................................................................34
5.6. Compass swing test ................................................................................................37
5.7. Flight test.................................................................................................................37
6. Using Stratus ESG..............................................................................................................37
6.1. Mode selection keys................................................................................................38
6.2. Event indicators.......................................................................................................38
6.3. FUNC key................................................................................................................38
6.4. Other keys...............................................................................................................39
6.5. Entering a squawk code..........................................................................................40
6.6. Entering the flight identification number...................................................................40
7. Troubleshooting ..................................................................................................................42
Technical Assistance ................................................................................................................44
Appendix A ...............................................................................................................................45

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Rev. 1.5
Last Revised: September 22, 2016
Page 5 of 47
List of Figures
Figure 1: Pin-out .......................................................................................................................24
Figure 2: Ambient light sensor location .....................................................................................34
Figure 3: Stratus ESG front panel .............................................................................................37
Figure 4: Pressure Altitude screen............................................................................................39
Figure 5: GPS screen................................................................................................................39
Figure 6: Flight ID screen..........................................................................................................39
Figure 7: Brightness screen ......................................................................................................39
Figure 8: Flight ID entry screen.................................................................................................41
List of Tables
Table 1: TSO/FCC compliance .................................................................................................15
Table 2: TSO deviations............................................................................................................15
Table 3: Criticality level.............................................................................................................16
Table 4: Software......................................................................................................................16
Table 5: Equipment dimensions................................................................................................17
Table 6: Equipment weight........................................................................................................17
Table 7: Electrical specifications ...............................................................................................17
Table 8: Power requirements....................................................................................................18
Table 9: Required tools.............................................................................................................18
Table 10: Required hardware (supplied parts) ..........................................................................18
Table 11: Required hardware (additional parts).........................................................................19
Table 12: Compatible GPS antenna..........................................................................................19
Table 13: Compatible transponder antenna ..............................................................................20
Table 14: Pin assignments........................................................................................................24
Table 15: Power pin assignments.............................................................................................24
Table 16: Parallel altitude encoder pin assignments .................................................................24
Table 17: Serial altitude encoder pin assignments....................................................................25
Table 18: Suppression pin assignments....................................................................................25
Table 19: Aircraft lighting bus pin assignments.........................................................................25
Table 20: External IDENT pin assignment.................................................................................25
Table 21: External standby pin assignment...............................................................................26
Table 22: Squat switch pin assignment.....................................................................................26
Table 23: Keys used during configuration .................................................................................27
Table 24: BIT diagnostic codes.................................................................................................32
Table 25: Mode selection keys..................................................................................................38
Table 26: Event indicators.........................................................................................................38
Table 27: DO-160G tests performed.........................................................................................47

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 6 of 47
Stratus ESG Limited Warranty
When purchasing Stratus ESG (“Product”) manufactured by Appareo Systems, LLC
(“Appareo”), the original end user (“Initial Customer”) receives a limited warranty (Limited
Warranty) from Appareo. This Limited Warranty outlines the Initial Customer’s exclusive rights
and remedies as relates to the Product.
The Initial Customer receives an expressed limited warranty (referred to as the “Limited
Warranty”) for the Product purchased from Appareo. The terms of the Limited Warranty are
explained below. Additionally, State or Provincial law may adjust the terms of the Limited
Warranty, or the State or Province may impose additional obligations or additional “implied
warranties.” To the extent necessary to comply with those laws, the terms of the Limited
Warranty should be read to adjust to those requirements only to the extent necessary to comply
with such local law.
If you are the corporation or individual installing or using the Product, you are asked to read the
following terms and conditions carefully before installing or using this Product. By installing or
using the Product, you consent to be bound by and become a party to the Limited Warranty. If
you do not agree to the terms and conditions of the Limited Warranty, you should return the
Product for a full refund prior to installation.
PRODUCT LIMITED WARRANTY
Appareo warrants to you, the Initial Customer, that the Product will be free from defects in
material and workmanship for a period of time as indicated in the chart below from the Product
purchase date from Appareo or an authorized Appareo dealer, subject to the terms of this
Limited Warranty. Any Implied Warranty of Merchantability or for Fitness for a Particular
Purpose, if applicable to the Product, is limited in duration to the period of ownership by the
Initial Customer. This provision shall not create any Implied Warranty or Merchantability or of
Fitness for a Particular Purpose that would not otherwise apply to the Product.
Product Type
Warranty Period
For TSO Stratus ESG, installed and
registered by an authorized Appareo installer
2 years or 800 flight hours, whichever
comes first.
For Stratus ESG registered by any entity
other than an authorized Appareo installer
18 months from the date of purchase.
Proof of purchase required. If not available,
warranty period begins at factory ship date.
For TSO Repaired or Newly Overhauled
Stratus ESG
6 months or 200 flight hours, whichever
comes first.
For non-TSO Repaired or Newly Overhauled
Stratus ESG
6 months from the date of shipment from
the manufacturer.
This Warranty is void if any part not supplied by Appareo is used in assembly or repair of the
Product, or if the Product has been altered. Appareo reserves the right to void warranty for
products not registered upon installation.

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 7 of 47
EXCLUSIVE REMEDIES UNDER LIMITED WARRANTY
If the Product proves to be defective in material or workmanship during the Warranty Period,
and all Limited Warranty requirements have been met, your exclusive remedies, and Appareo’s
sole obligations, are that Appareo will repair or replace the Product under this Limited Warranty.
MAKING A LIMITED WARRANTY CLAIM
To make a Limited Warranty claim on your Product, you must do the following:
1. Call Appareo at [phone], write to Appareo at 1830 NDSU Research Circle North,
Fargo, ND 58102, or e-mail Appareo at [e-mail] and provide the Product’s serial
number and date of purchase.
2. Provide reasonable proof of purchase (for example, a sales receipt) that establishes you
as the Initial Customer (the original end-user consumer purchaser) and which provides evidence
that the Product was purchased within the warranty period of the event for which you are
making a claim for warranty service.
3. Appareo will provide you with a Return Materials Authorization number and shipping
information for the return of your unit.
4. Upon receipt of the returned Product, Appareo will inspect it and make a determination
as to validity of the warranty claim. Appareo will respond to you within 15 days of receipt of the
Product.
5. If upon examination it is determined that the Product is operating within factory
recommended specifications, you will be notified and may request that the Product be returned
to you. You will be asked to pay a reasonable service charge and also for shipping expenses to
and from Appareo.
6. If it is determined upon examination that the Product is not operating within factory
recommended specifications, but that the source of the failure was outside of the scope of this
Limited Warranty, you will be notified of the estimated cost for repair of the Product to factory
specifications. At this time you may request that the Product be returned to you without further
action or that Appareo repair the Product as per the provided estimate and return the product to
you. In this case you will be billed for the repairs and for shipping expenses to and from
Appareo.
7. If it is determined that the returned Product fall within the scope of this Limited Warranty,
Appareo will repair or replace the Product at its discretion. Replacement Product may be new or
factory refurbished at Appareo’s discretion, and shall carry the warranty of the original Product.
Following repair or replacement, Product shall be shipped to the same location in the same
manner as was the returned Product. Appareo shall pay all associated shipping expenses.

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 8 of 47
THE LIMITED WARRANTY DOES NOT APPLY UNLESS THE INITIAL CUSTOMER:
1. Has properly operated the Product.
2. Has installed and maintained the Product properly per any installation or maintenance
instructions provided.
APPAREO DOES NOT COVER OR UNDERTAKE ANY LIABILITY IN ANY EVENT FOR ANY
OF THE FOLLOWING:
1. Loss of or damage to data, records, or software or the restoration of data or records, or
the reinstallation of software.
2. Damage from any circumstance described as excluded below with respect to the
product.
3. Damages from fire, flood, wind, rain, rising water, leakage or breakage of plumbing,
abuse, misuse or alteration of the product.
NO DEALER WARRANTY
This is the exclusive warranty applicable to Appareo Products. No dealer has any authority to
make any other warranty, modify, limit, or expand the terms of this Warranty in any fashion, or
to make any representation or promise on behalf of Appareo.
EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES
1. The sole and exclusive remedies of the Initial Customer are those provided by the
Limited Warranty. Appareo excludes any liability for personal injury under the Limited Warranty.
Appareo excludes any liability for direct, indirect, special, incidental or consequential damages,
whether for damage to or loss of property, loss of profits, business interruption, or loss of
information or data.
2. Danger: Do not use for medical or life support equipment or other high risk activities!
3. Appareo does not sell their Products for use in high-risk activities. The Product is not
designed or intended for use in hazardous environments requiring fail-safe performance or for
use in any circumstance in which the failure of the Product could lead directly to death, personal
injury, or severe physical or property damage, or that would affect operation or safety of any
medical or life support device (collectively “High Risk Activities”). Appareo expressly disclaims
any express or implied warranty of fitness for High Risk Activities. Appareo does not authorize
use of any of the Products in any High Risk Activities.
4. This Limited Warranty is governed by the laws of the United States and the State of
North Dakota, without reference to conflict of law principles.
5. Contact Information: Appareo’s address is 1830 NDSU Research Circle North, Fargo,
ND 58102. Their phone number is [phone]. Appareo is the warrantor under this Limited
Warranty. You may also contact Appareo on the Internet at www.appareo.com

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 9 of 47
6. CAUTION: Any changes or modifications not expressly approved by the warranty and/or
user documentation accompanying this device could void the user’s authority to operate the
equipment.
EXPORT REGULATIONS
Certain Appareo products are subject to export controls by the U.S. Department of Commerce
(DOC), under the Export Administration Regulations (EAR). Violation of U.S. law is strictly
prohibited. You agree to comply with the requirements of the EAR and all applicable
international, national, state, regional and local laws, and regulations, including any applicable
import and use restrictions.
For further information or clarification regarding these regulations please contact Appareo.

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 10 of 47
Warnings
•The pilot must read the Stratus ESG Pilot’s Guide (600890-000049) before their first
flight.
•Squawk codes 7500 (hijacking), 7600 (radio failure), and 7700 (emergency) are
reserved for emergencies. There may be other reserved codes, depending on the region
you are flying in. It is the pilot-in-command’s responsibility to comply with their
jurisdiction's operating rules and regulations.

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 11 of 47
Record of Revision
Revision
Number Change Description Revision Date Inserted By
1.0 Initial Release 2/09/16 AAL
1.1 CM 11159 4/26/16 AAL
1.2 CM 11262 5/05/16 AAL
1.3 CM 11306 5/10/16 AAL
1.4 CM 11688 6/22/16 AAL
1.5 Updated warranty; fixed typo in 1.11.2 and 4.10; moved table of contents/figures/tables;
added URL to 1.1. 9/22/16 AAL

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 12 of 47
Related Documentation
Document Number Title
Appareo 600845-000025 Stratus ESG Instructions for Continued Airworthiness
Appareo 600890-000049 Stratus ESG Pilot’s Guide
Appareo 601837-000024 Stratus ESG Installation and Wiring Drawings
FAA AC 20-165B Airworthiness Approval of Automatic Dependent Surveillance -
Broadcast OUT Systems
FAA AC 43.13-1B Acceptable Methods, Techniques, and Practices - Aircraft
Inspection and Repair
FAA AC 43.13-2B Acceptable Methods, Techniques, and Practices - Aircraft
Alterations
RTCA DO-160G Environmental Conditions and Test Procedures for Airborne
Equipment
Vendor Information
Part Vendor Contact Information
42G15A-XT-1 (GPS antenna) ANTCOM
Antcom Corporation
367 Van Ness Way, Suite 602
Torrance, California 90501
Phone: [phone]
http://www.antcom.com/
AV-74 (transponder antenna) RAMI
Rami
14500 168th Avenue
P.O. Box 858
Grand Haven, MI 49417
Phone: [phone]
http://www.rami.com/

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 13 of 47
Abbreviations, Terms, and Definitions
Abbreviation Term Definition
AC Advisory Circular Document provided by the FAA that provides
airworthiness recommendations.
ACO Aircraft Certification
Office
Branch of the FAA that works with the applications for
certifications.
ADS-B
Automatic
Dependent
Surveillance -
Broadcast
Technology implemented by the FAA to provide
surveillance and improved situational awareness to both
pilots and air traffic controllers.
ATC Air Traffic Control Service that directs aircraft on the ground and through
controlled airspace.
ATCRBS Air Traffic Control Radar Beacon
System
The surveillance system used by Air Traffic Control to
augment radar operations.
BIT Built In Test A series of tests performed on start up to monitor the
function of the equipment.
CFR Code of Federal
Regulations
Codification of the general and permanent rules and
regulations published in the Federal Register by the
executive departments and agencies of the United
States Federal government.
EMI Electromagnetic
interference Type of test conducted to ensure system performance when in an electromagnetic environment.
ESG Part of the marketing name for Stratus ESG.
FAA Federal Aviation
Administration
Agency of the United States Department of
Transportation with authority to regulate and oversee all
aspects of civil aviation in the United States.
FCC Federal Communications
Commission
Branch of the government responsible for controlling the
regulations around electronic equipment.
FMS Flight Management
System System that automates the aircraft’s flight plan.
GPS Global Positioning
System
Satellite-based navigation system that provides location
and time information.
HF High Frequency Range of frequency between 3 MHz to 30 MHz.
Hz Hertz Unit of frequency based upon cycles per second.

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 14 of 47
IDENT IDENT
(Identification)
Transponder feature that allows for aircraft to be
uniquely identified by Air Traffic Control by pulsing the
aircraft’s reply on ATC’s monitors for 18 seconds.
MHz megahertz 1,000,000 hertz.
SBAS Satellite-Based Augmentation
System
System of satellites that augments existing satellite
systems and provides increased position accuracy.
STC Supplemental
Type Certificate
Type Certificate issued when an applicant has received
FAA approval to modify an aircraft from its original
design.
TIS-B
Traffic
Information
Service-
Broadcast
Aviation information service broadcast provided to
aircraft using both 1090 MHz ES and UAT.
TSO Technical
Standard Order
Minimum performance standard for specified materials,
parts, and appliances used on civil aircraft (FAA
definition).
VFR Visual Flight
Rules
A set of regulations for flying in which the pilot flies
without using instruments in generally clear
meteorological conditions.
VHF Very High
Frequency Range of frequency between 30 MHz to 300 MHz.
WAAS Wide Area Augmentation
System
System of ground-based antennas whose precisely
known locations are used to correct satellite signals and
provide greater positional and integrity of service to
aircraft in flight.

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 15 of 47
1. About Stratus ESG
1.1. Overview
Stratus ESG by Appareo is a panel-mounted level 2els Class 1 Extended Squitter transponder.
It is a Class B1S transponder which is ADS-B Out compliant. To support the ADS-B Out
function, Stratus ESG contains a Class Beta 1 GPS/WAAS receiver. Stratus ESG responds to
legacy Mode A/C interrogations and Mode S interrogations from both ground radar and airborne
collision avoidance systems.
The most recent version of this document and other Stratus ESG documentation can be found
in the Appareo Dealer Portal or at www.appareo.com/resources.
1.2. TSO/FCC compliance
TSO
Stratus ESG is compliant with the following Technical Standard Orders:
Reference/Issue Title
FAA TSO-C112e
Technical Standard Order: Air Traffic Control Radar Beacon
System/Mode Select (ATCRBS / Mode S) Airborne Equipment
FAA TSO-C145d
Technical Standard Order: Airborne Navigation Sensors Using The
Global Positioning System
FAA TSO-C166b
Technical Standard Order: Extended Squitter Automatic Dependent
Surveillance - Broadcast (ADS-B) and Traffic Information Service -
Broadcast (TIS-B) Equipment Operating on the Radio Frequency of
1090 Megahertz (MHz)
Table 1: TSO/FCC compliance
FCC
Stratus ESG has an FCC ID of 2AETC-1505005.
1.3. TSO deviations
TSO Section Deviation
TSO-C145d
Section 3, Subpart D
Environmental qualification testing was
performed to DO-160G, not DO-160E.
Table 2: TSO deviations
1.4. Non-TSO functions
Below are Stratus ESG’s non-TSO functions:
•VFR key (and configuration).
This non-TSO function does not interfere with Stratus ESG’s compliance with the requirements
of the TSOs listed in Section 1.2

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 16 of 47
1.5. Environmental qualifications
Stratus ESG is tested to DO-160G. The Stratus ESG Environmental Qualification form is found
in Appendix A of this document.
1.6. Criticality level
Software level determination is based on the Functional Hazard Assessment (FHA) and
Preliminary System Safety Assessment (PSSA). These assessments determined that the most
severe failure conditions (see Table 3) are classified as Major. As such, the Software Assurance
Level has been determined to be Major.
Major failure conditions would reduce the capability of the aircraft or the ability of the crew to
cope with adverse operating conditions to the extent that it would be a significant reduction in
safety margins or functional capabilities or a significant increase in crew workload. Software
whose anomalous behavior would cause or contribute to a failure of the system function
resulting in a Major failure condition for the aircraft is identified as Level C.
Function Description Classification
ATCRBS / Mode S
Transponder
Malfunction of the ATCRBS / Mode S
transponder function without warning
Major
ADS-B Out
Broadcast of incorrect ADS-B messages
without warning
Major
GPS/SBAS Receiver
Loss or malfunction of the GPS/SBAS receiver
function
Major
Pressure Altitude Output
Failure of the pressure altitude output function
Major
RF Feed-Through
Malfunction of the RF feed-through function
without warning
Major
Table 3: Criticality level
1.7. Embedded Hardware and Software
The embedded hardware and software information listed below is current as of the time of
publication of this document.
Description Part number Revision
(or later FAA approved)
Embedded Hardware (FPGA)
501010-000109
R04
Software (DSC)
501010-000113
R04
Table 4: Software

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 17 of 47
1.8. Equipment specifications
Equipment dimensions
Characteristic Dimension
Bezel Width
6.38 inches (162 mm)
Bezel Height
1.69 inches (43 mm)
Rack Width
6.32 inches (160.4 mm)
Rack Height
1.65 inches (42 mm)
Depth from back of bezel to end of strain
relief on rack (not compensating for wire
bend radius)
10.75 inches (273 mm)
Table 5: Equipment dimensions
Equipment weight
Component Weight
Stratus ESG Unit Weight
2.75 lbs. (1.25 kg)
Stratus ESG Total Installed Weight
(Transponder with rack and connectors)
3.29 lbs. (1.49 kg)
Table 6: Equipment weight
Electrical specifications
Characteristic Specification
Altitude
Up to 25,000 ft
External Suppression Input
Low ≤0.5 V
High ≥5 V (suppressed)
Mode A Capability
4096 Identification Codes
Mode C Altitude Capability
Parallel altitude encoder: up to 62,700 ft
Serial altitude encoder: up to 126,700 ft
Mode S Capability
Parallel altitude encoder: up to 62,700 ft
Serial altitude encoder: up to 126,700 ft
Operational Temperature Range
-20°C to +55°C
Receiver Frequency
1030 MHz
Receiver Sensitivity
-74 dBm nominal for 90% replies
Transmitter Frequency
1090 MHz ± 1 MHz
Transmitter Power
310 Watts nominal
Table 7: Electrical specifications

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 18 of 47
Power requirements
Characteristic Specification
Input Voltage Range
11 to 36 VDC
Nominal Current Draw
0.28 A at 28 VDC
0.5 A at 14 VDC
Power Input
8 W Typical
59.5 W Max
Table 8: Power requirements
1.9. Required tools
The following tools are needed for installation of Stratus ESG.
Tool Part Number Used For
3/32” hex driver
Securing locking mechanism
through the faceplate
External retaining ring pliers
RF pass through adapter
Crimp tool
M22520/2-01
DSUB pins
Positioner
M22520/2-08
DSUB pins
Insertion/Extraction tool
M81969/39-01
DSUB pins
Table 9: Required tools
1.10. Required hardware
The following parts are required for the installation of Stratus ESG.
Supplied parts:
Item Appareo Part
Number Commercial Part Number Quantity
Backplate
153510-000015
-
1
Transponder
153510-000017
-
1
Stratus ESG Rack
153540-000027
-
1
RF TNC Pass Through Adapter
251015-000077
-
1
RF BNC Pass Through Adapter
251015-000078
-
1
37 Pin DSUB Connector
251015-000074
M24308/2-4F
1
Screw
356060-000007
-
6
Strain Relief Backshell
356070-000006
M85049/48-1-4F
1
Table 10: Required hardware (supplied parts)

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 19 of 47
Additional parts:
Item Appareo Part
Number Commercial Part Number Quantity
#6-32 x 100° Flat Head SS
Screw
-
MS24693, AN507R or
other approved
fastener
6
Table 11: Required hardware (additional parts)
1.11. Compatible equipment
Stratus ESG requires input from a GPS antenna, transponder antenna, and altitude encoder.
This section describes the requirements for the antennas and altitude encoders that must be
installed on the aircraft.
Inputs from systems described below may be pre-existing. If these systems do not exist or have
specifications outside those described, selection of new equipment will be required. These
installation instructions do not cover the installation of the antennas or other input sources, and
they should be installed per manufacturer’s instructions.
Antennas
The GPS and transponder antennas should be installed using the antenna manufacturer’s
instructions. Wiring must be installed in accordance with FAA AC 43.13-1B and AC 43.13-2B.
1.11.1.1. GPS antenna
Stratus ESG requires an active antenna with the specifications of either TSO-C190 or
TSO-C144.
If meeting the specifications of TSO-C190, the GPS antenna must meet the following:
•Powered at 5 Volts
•Gain of 30 dB +- 5 dB
•Qualified DO-160E Lightning, Zone 2A
•Qualified DO-160E Icing, Category C
Alternatively, the following TSO-C144 antenna is compatible:
Manufacturer Part Number
AntCom
42G15A-XT-1
Table 12: Compatible GPS antenna
The antenna should be installed using the antenna manufacturer’s instructions. The antenna
must also be installed at least 2 feet away from any other comm transmitter or transmitter
antenna in a location that does not break line of sight with satellites. Typical installation
locations are on the top of the aircraft or on the empennage with consideration for line of sight
with satellites.

600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 20 of 47
All wiring should have a cable loss of minimum 2 dB and maximum 7 dB. The standard
installation has 3 BNC/TNC connections. Any additional BNC/TNC connections should estimate
a 0.2 dB loss per connection and be taken into consideration for maximum dB loss.
NOTE: Using RG400 the minimum cable length is 10 feet and the maximum length is 37 feet. If
the installation requires you to go outside of these length specifications, the selection of coax
should be 50 ohm.
If installing on a pressurized aircraft, follow the instructions as indicated by an aircraft STC.
Otherwise, seek other approval. Other provisions could be made by contacting your Regional
Aircraft Certification Office (ACO).
1.11.1.2. Transponder antenna
Stratus ESG requires a passive antenna with the specifications of TSO-C74d or TSO-C66. The
following antenna is an example of an antenna that meets these specifications. The installation
is not limited to this antenna.
Manufacturer Part Number
Rami
AV-74
Table 13: Compatible transponder antenna
The antenna should be installed using the antenna manufacturer’s instructions. The antenna
should be mounted vertically on the bottom of the aircraft and a minimum of:
•6 feet away from DME antenna
•3 feet away from ADF antenna or any other communication antenna
•3 feet away from TCAS antenna
•3 feet away from Stratus ESG itself to prevent self-interference
Keep the antenna away from any protruding metal such as engines, propellers, other antenna
masts, landing gear (and/or doors), and access doors; breaks in the antenna's ground plane; or
anything that can affect the radiation pattern. If mounted on a composite aircraft, a conductive
ground plane should be added to the aircraft in order for the radiation pattern of the antenna to
be maximized.
NOTE: A determination should be made whether the current cabling is acceptable for the
installation. Using RG400, the maximum cable length is 14 feet with a maximum of 2 dB loss. If
the installation requires more length, select other 50 ohm coax that will not exceed the
maximum of 2 dB loss.
Altitude encoders
Stratus ESG requires input from an independent altitude encoder. Stratus ESG will connect to
an encoder that has a Gillham (gray code) connection or a serial altitude encoder output on a
RS232 port. The altitude encoder must meet the performance requirements of TSO-C88 (a
or b). Serial altitude encoders must be Trimble/Garmin or Shadin/RMS altitude encoders.